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sna/dri2: Decouple spent flip 

If the flip is already completed before we finish the previous flip, the
drawable has been replaced already and we can unchain the flip queue.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2014-05-31 21:41:45 +01:00
parent 0ee1940a4f
commit 1b5f91e142
1 changed files with 17 additions and 4 deletions
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21
src/sna/sna_dri2.c
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@ -1786,11 +1786,24 @@ sna_dri2_flip_continue(struct sna *sna, struct sna_dri2_frame_event *info)
if (bo != sna_pixmap(sna->front)->gpu_bo)
return false;
info->count = sna_page_flip(sna, bo, info, info->pipe);
if (!info->count)
return false;
if (bo == sna->dri2.scanout[0].bo) {
DBG(("%s: flip chain already complete\n", __FUNCTION__));
update_scanout(sna, info, bo, info->front->name);
if (info->draw) {
sna_dri2_remove_frame_event((WindowPtr)info->draw, info);
if (info->chain)
chain_swap(sna, info->draw, info->chain);
}
info->draw = NULL;
return false;
} else {
info->count = sna_page_flip(sna, bo, info, info->pipe);
if (!info->count)
return false;
update_scanout(sna, info, bo, info->front->name);
}
} else {
info->type = -info->mode;